S
M
T
W
T
F
S
1
86°
72°
2
84°
72°
3
86°
73°
4
85°
72°
5
84°
73°
6
84°
72°
7
84°
73°
8
84°
72°
9
86°
72°
10
84°
71°
11
82°
72°
12
84°
70°
13
84°
70°
14
82°
70°
15
84°
70°
16
86°
70°
17
86°
70°
18
86°
70°
19
84°
68°
20
82°
66°
21
88°
72°
22
82°
73°
23
84°
72°
24
84°
72°
25
84°
73°
26
82°
72°
27
82°
70°
28
81°
70°
29
82°
70°
30
84°
73°
31
84°
70°
1
84°
72°
2
84°
72°
3
84°
73°
4
86°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in San Antonio
San Antonio's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in San Antonio. See also: April | May | June.
